barker



(No Model.) 2 Sheets-Sheet l.

H. G. BARKER.

BRICK MACHINE.

Patented Feb. 8, 1898.

THE NORRIS PETERS co FHOTO-UYMO,. WASHINGTON. u. c.

2 Sheet's-Sheet 2.

gNoModelQ) H. G. BARKER.

BRICK MACHINE.

Patented Feb. 8,. 1898 ll 5 n III WITN ssse s Tm: NORRIS PETERS cu.vuorcuuma, wAsumu'roN, n, c.

Nl-TED STATES PATENT 1 rric Et HENRY O. BARKER, OF SEDALIA,MISSQURQASSIGNOR TO JOHN W. BOWMAN, EMIL DORN, AND HENRY KROPP BENTE, OFSAME PLACE.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 598,724, dated February8, 1898.

Too/M whom it mayhoncern: I Be it known that I, HENRY'C. BARKER, acitizen of the United States, residing at Sedalia, in the county ofPettis and State of Missouri, have invented certain new and usefulImprovements in Brick-Machines; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such aswillenable others skilled in the art to which it appertains to make anduse the same.

My invention relates to improvements in dry-pressed-brick machines; andit consists in a frame carrying levers, means'for operating said levers,a mold-table mounted in said frame, a mold adaptedto rest upon saidtable, dies actuatedby said levers and adapted to press clay or similarmaterial in the mold for forming bricks, and means for raising the moldabove the brick for removingjthe same.

It also consists of dies mounted in a suitable frame, means foroperating the same, a mold having a feed mechanism attached thereto,means for raising the mold after a brick has been pressed, and means forejecting the brick from beneath the mold.

It further consists in certain other novel constructions, combinations,and arrangements of parts, as will be hereinafter fully described andclaimed.

In the accompanying drawings, Figure 1 represents a side elevation of myimproved brickmachine. Fig. 2, represents a top plan view of the same.Fig. 3 is an end elevation of the brick-machine. Fig. 4 is a detailvertical section through the mold-table, mold, and feeding mechanism;and Fig. '5 is a detail view of the mold, showing the grooves upon theunder side for the escape of air.

A in the drawings represents the frame of my improved brick-machine; B,an upper die; 0, a lower die; D, a mold-table; E, a mold, and F afeeder.

The frame A is provided with a bed-plate a and at one end with uprightstandards a a, connected at the top by across brace-piece a The frame 'Ais also provided at its other end with upright standards a which arecon:

nected with the standards a by horizontal braces a a p The upper die Bis formed of a rectangular bar preferably bifurcated at its lower end,as

i A Application filed April 13, 1897. Serial No. 631,991; memorial.)

at b, and is provided with laterally-extend I ing portions 5 b, theouter ends of which engage guides formed upon the standards a 0.. Theseguides are preferably formed by the bars a a, bolted to the edges of thestandards a, spacing-blocks a of asuitable thickness being interposedbetween the said bars and standards. The die 13 is provided with a slot17 at its upper end. In the lower end of the slot is mounted afriction-roller b which is adapted to be engaged by the end g of a leverG, pivotally mounted, as at g, between the upper ends of the standardsa, a. The other end 9 of the lever G is connected to a toggle H. The endg of the lever G extends into the slot 1) of the die and is adapted toexert a pressure upon the friction-roller b for forcing the die Bdownwardly.

In order to be able to regulate the height to which the upper die may beraised upon it may be turned to adjust the screw. It will be seen thatby adjusting the screw 9 the height to which the upper die B will be carried by the movement of the lever G may be regulated at will. The lowerdie C is also bifurcated at its upper end, as at c, to correspond to thedie B and is provided at its lower end with a friction-rollervc. The die0 is also provided with laterally-extending arms 0 0 which engage theguides a to direct the movement of the said die 0. A lever I, pivoted,as at 2', in the frame A, is adapted to engage the friction-roller c atits outer end i to raise or lower the die at the proper time. The innerend of the lever I forms one member of the toggle H, the other member hthereof, connecting the inner ends of the levers G and I, being pivotedto each. In order to operate the toggle H, a bar J is pivoted, as at j,at one end to the leverI and. at the other end to a crank 76 upon theshaft K. The shaft K carries a large gear-wheel 70, which meshes with apinion Z upon a shaft L, mounted in the lower part of the frame A. Theshaft L preferably extends beyond the frame A and is provided with apulley or belt-wheel Z, by

which any suitable power may be applied for operating theabove-described mechanism.

It will be apparent from the above description that upon revolving thepulley Z motion will be imparted through the pinion Z to the gear-wheel7c and shaft K, which in turn will cause the reciprocation of the bar J,thereby operating the toggle H and levers G and I for forcing the dies Band 0 toward each other to press the bricks and retracting the same.Mounted between the standards a a is a table, which I term themold-table, D, which is provided centrally thereof with an aperture 01to receive the upper ends of the die 0. As the machine hereinparticularly described is adapted to mold two bricks at a time, theaperture d is provided with a partition cl, dividing the opening. Abovethe table is-a mold E, provided with central openings, as e c, in whichthe bricks are adapted to be compressed. The upper surface of the mold Eis beveled, as at e, to direct the clay into the compressing-chambers. Acentral partition 6 is employed to divide the bricks and guide thebifurcated ends of the dies. Secured to the upper part of the mold E isa feeder F, comprising a casing f, having inletpassage f leading intothe top of the same for supplying the clay to said feeder. The die Bpasses through the feeder and therefore works up and down in the clay.When the die B is raised, the clay around it in the feeder falls intothe mold, being guided by the inclined surface 6', and when the diedescends it compresses the clay beneath it. In order to allow for theescape of air from the clay upon the pressing of the brick, I formgrooves, preferably V-shaped, upon the end surfaces of the mold E,extending in different directions. In order to remove the bricks fromthe mold, I provide means for raising the mold after the bricks arepressed, consisting of levers e 6 mounted upon a shaft 6 pivoted in thestandards c a, one end of each lever extending on either side of themold and connected thereto by pivoted links 6 e. A lever e is secured tothe shaft e and is connected at its upper end to a link or bar 6 The bar6 carries a friction-roller e at one end, said roller being adapted torest and run upon a portion of the frame, as 0. A diagonal bar ismounted upon the side of the gear-wheel 7c, and one edge thereof forms acam-surface for engaging the friction-roller e as the gear-wheel 7crevolves. The mold normally rests upon the table, but after the brickshave been pressed the bar 70 will engage the roller 6 and draw the bar 6toward the gear-wheel 70, which will raise the mold E to a point alittle above the bricks. After the bricks are removed the roller a willbecome disengaged from the bar k and the mold will return to itsposition upon the table. A bar 712 similar to 70 but oppositelyarranged, is also secured to the wheel 70 and is adapted to engage thewheel a and force the mold E to its place on the table D in the event ofits own weight not being sufficient to accomplish this result. In orderto remove the bricks from beneath the mold when the same is raised, Iprovide a lever M, pivotally mounted to the frame A, as at m. This leveris preferably of an approximate S shape and 'is pivotedat its upper endto a bar on, which extends forward and rests upon the table D inproximity to the mold E. A friction-roller k is mounted upon one side ofthe gear-wheel k and upon the revolution of the same will come incontact with the upper portion of the lever M and'force the sameforward, so that the bar on will be caused to strike the bricks andknock them from beneath the mold E. The friction-roller m will then comein contact with the lower end of the lever M and cause the lever toassume its normal position and withdraw the bar m.

It will be apparent from the description that when the mold is in placeupon the table and thelevers operating the dies are actuated, asdescribed, the lower die will be forced upward to a point on a levelwith the moldtable and the upper die will pass down through the feeder,carrying the clay about it, and compress the clay in the mold to formbricks. At this point the mechanism carrying the mold will be operatedto raise the same and the ejecting-bar will be actuated to push thebrick from beneath the mold. The mold is preferably formed with aslightly-beveled under surface, so that it only rests upon the table atits inner edge.

It will be seen from the above description that I have provided a simpleyet very effective machine for manufacturing dry-pressed bricks and thatthe same may be so constructed as to automatically take the clay, pressthe bricks, and remove the same in a continuous operation.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a brick-machine, the combination of an upper die, a lower die,means for reciprocating both the said dies, a mold-table, a mold open atthe top for receiving the loose clay to be pressed and adapted-to restupon said table and means for raising the mold after the bricks arepressed,substantially as described.

2. In abrick-machine,the combination with a suitable frame, of diesmounted therein, means for reciprocating the dies, a mold-table mountedin said frame, a mold open at the top and bottom and provided with upperbeveled surfaces, a feeder secured to said mold for supplying the samewith loose clay, means for raising the mold above the table and meansfor pushing the bricks from beneath the mold, substantially asdescribed.

3. In abriok-machine,the combination with a suitable frame, of amold-table, a mold adapted to rest upon said table for receivingmaterial to be pressed, the lower edges of said mold being beveled so asto touch the mold-table at the inner edge, and having grooves upon itsunder surfaces for allowing the air to escape from the bottom of themold, substantially as described.

4. In a brick-machine,the combination with a suitable frame, ofreciprooatin g dies mounted therein, levers pivotally mounted in saidframe for operating the dies, a toggle-joint for spreading said leversone of said levers forming one member of said toggle-joint and meansconnected with the actuating mechanism for operating the said levers,amold-table mounted in the'frarne and a mold open at the top forreceiving the loose clay and normally restingv upon the said table andadapted to receive the dies from the top and bottom for pressing brickswithin the same, means for raising the said mold whereby the bricks maybe pushed from beneath the same, substantially as described.

5. In abrick-machine,the combination with a suitable frame, of upper andlower dies mounted therein, means for reciprocating both of the same, amovable mold, open at top and bottom, to receive said dies whereby claymay be fed in at the top and be pressed into bricks within the same, andmeans for moving the said mold away from the brick,whereby the same isfree tobe ejected from the machine beneath the mold, substantially asdescribed.

6. In a brick-machine,the combination with a suitable frame, ofreciprocating dies mounted therein, levers pivoted in the said frame,for reciprocating the said dies, friction-roll ers interposed betweensaid levers and the frame, levers secured thereto and connected to saidmold, an arm upon said shaft, a bar pivotally connected to said arm andpro vided with a friction-roller at one end,adapted to run upon saidframe, a gear-wheel provided with a cam mounted in said frame, said-cambeing adapted to engage the friction-roller for raising the mold andmeans for actuating the gear-Wheel, substantially as described.

In testimony whereof I affiX my signature in presence of two Witnesses.

HENRY O. BARKER.

Witnesses:

S. M. HODGES, EUGENE J. VARNON.

